�! 0000034275 00000 n %PDF-1.4 As shown in Figure 1 and Figure 2, under the same experimental conditions, the thickness is positively correlated with reflectance, and negatively correlated with transmittance. 0000025222 00000 n 0000098743 00000 n ��w ��� �@� /Filter /FlateDecode 0000022851 00000 n "J�:� �ФK E$(5�`CD�b�����xE�*��X��E,��[��Lx��{��>��y�߽v;g��ګ�3 @ @U�@1q��}�����7b�4yU��3 :g H�wN=�Yek rb���fݹ{�q,��% =#nj62��%x�m��c�šk `�[�� H*@\�I#�����}�3&�{��V�&lWcy��Q��5�� ���ϕ|ua��CM����y7��_��s������hm���O����7��Nf�cG��������H՘�P3d� ���2�R�Z�?��!TB��*f����,��t��`����T������b�����B� D\��1џ���>~-�c2��B+a����A�o��܉x��/`�T ��,^wH ��}�U�X��k�}�=���0?���5���)B��4���������P��R���X�c�A���D �XLހ%��FlG Welcome to contact us for the PTFE products. �J� 0000044268 00000 n In the region 350nm to 1200nm, PTFE has a measured re ectivity of 99%. 21 0 obj 0000037561 00000 n <> This is because the thickness is a key parameter in the diffuse reflection mechanism. With over 97% average reflectance from 250nm to 400nm, POREX Virtek pure PTFE reflectors can maximize disinfection rates and minimize system cost. Comparison with Molded PTFE and Extended PTFE (ePTFE)Sintered and skived PTFE material offers many benefits, such as low flex fatigue, omnidirectional diffuse reflectance, and compatibility with heat and vibrational welding. 0000025578 00000 n 0000054388 00000 n Various samples of PTFE, manufactured by different processes (extruded, expanded, skived and pressed) have been studied. 0000098198 00000 n PTFE is composed of carbon-fluorine bonds, which are about 30% stronger than carbon-hydrogen bonds. 0000099036 00000 n 0000017691 00000 n 0000020728 00000 n In addition, because the porous structure will repeatedly reflect UV and visible light inside the PTFE, increasing the thickness of the porous PTFE will increase the reflectivity. 0 In addition, the relationship between reflectivity and pore size can be found through experimental data. ��U��p,z����G:��]'s7�R����F�u~H�H%�ˈ_P��!�1�~V��hĢ���h�Ϸ�9����9�|�o���b[P���)�cix�\?r�u$�s\τ��H�]_M��s=|��uR�q����>�a����K��6��Y����/��n����Ɛ=M��`=��vT̅�! The material is then skived, a process in which thin layers of material are cut from the bulk, to produce precisely 0.75 mm thick sheets. xڍۮ�6�_a( �V����S6I�I4N[`�<2ms#K�.iN�~�FI�Q�rD���p�>����oU���0��t�?nTR�I�7e��Zm��Ϳ����c��v�Dq��-R���yg�e����nw8�g{�GY�� Music Symbols Emoji, Sims 4 Vampire Names, Bootstrap Vs Materialize Vs Foundation, Dog Name Tag Engraving, Ucluelet, Bc Real Estate, Assistant Librarian Job, Frontier Soup Mix Near Me, Mini Neopatentati 2020, Narrative Essay About A Lesson Learned, " />
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ptfe uv reflectance

The reflectance scale in … 0000000016 00000 n endobj %PDF-1.4 %���� Long-term exposure to UV radiation will cause the carbon-hydrogen bond to break, and the physical properties of the material And the mechanical characteristics have changed, so it is not suitable for UV LED packaging materials. This highly reflecting, PTFE-based material is resistant to heat, humidity and exposure to high levels of radiation, making it ideal for use as reflectance standards. 0000007048 00000 n 0000041127 00000 n 0000006961 00000 n reflectance distribution function (BRDF) and directional hemispherical reflectance (DHR) of pressed and LD PTFE in the UV. 0000038028 00000 n x��|T��?�����5m�f�d2�2 ! 19 0 obj Why choose PTFE as the reflective material of UV LED?, Polytetrafluoroethylene (PTFE) performance introduction, Application of PTFE coating on medical equipment. 0000102789 00000 n 281 0 obj <>stream 2) Porex’s PTFE has a temperature resistance range from -40 °C to 260 °C. e-PTFE 95% Aluminum—sputtered on glass 80% Aluminum foil 73% Stainless steel (various formulas) 20 – 28% A common material used in commercial UV disinfection systems is stainless steel. ����y=�s�v��,��"�.��c>�! 0000034275 00000 n %PDF-1.4 As shown in Figure 1 and Figure 2, under the same experimental conditions, the thickness is positively correlated with reflectance, and negatively correlated with transmittance. 0000025222 00000 n 0000098743 00000 n ��w ��� �@� /Filter /FlateDecode 0000022851 00000 n "J�:� �ФK E$(5�`CD�b�����xE�*��X��E,��[��Lx��{��>��y�߽v;g��ګ�3 @ @U�@1q��}�����7b�4yU��3 :g H�wN=�Yek rb���fݹ{�q,��% =#nj62��%x�m��c�šk `�[�� H*@\�I#�����}�3&�{��V�&lWcy��Q��5�� ���ϕ|ua��CM����y7��_��s������hm���O����7��Nf�cG��������H՘�P3d� ���2�R�Z�?��!TB��*f����,��t��`����T������b�����B� D\��1џ���>~-�c2��B+a����A�o��܉x��/`�T ��,^wH ��}�U�X��k�}�=���0?���5���)B��4���������P��R���X�c�A���D �XLހ%��FlG Welcome to contact us for the PTFE products. �J� 0000044268 00000 n In the region 350nm to 1200nm, PTFE has a measured re ectivity of 99%. 21 0 obj 0000037561 00000 n <> This is because the thickness is a key parameter in the diffuse reflection mechanism. With over 97% average reflectance from 250nm to 400nm, POREX Virtek pure PTFE reflectors can maximize disinfection rates and minimize system cost. Comparison with Molded PTFE and Extended PTFE (ePTFE)Sintered and skived PTFE material offers many benefits, such as low flex fatigue, omnidirectional diffuse reflectance, and compatibility with heat and vibrational welding. 0000025578 00000 n 0000054388 00000 n Various samples of PTFE, manufactured by different processes (extruded, expanded, skived and pressed) have been studied. 0000098198 00000 n PTFE is composed of carbon-fluorine bonds, which are about 30% stronger than carbon-hydrogen bonds. 0000099036 00000 n 0000017691 00000 n 0000020728 00000 n In addition, because the porous structure will repeatedly reflect UV and visible light inside the PTFE, increasing the thickness of the porous PTFE will increase the reflectivity. 0 In addition, the relationship between reflectivity and pore size can be found through experimental data. ��U��p,z����G:��]'s7�R����F�u~H�H%�ˈ_P��!�1�~V��hĢ���h�Ϸ�9����9�|�o���b[P���)�cix�\?r�u$�s\τ��H�]_M��s=|��uR�q����>�a����K��6��Y����/��n����Ɛ=M��`=��vT̅�! The material is then skived, a process in which thin layers of material are cut from the bulk, to produce precisely 0.75 mm thick sheets. xڍۮ�6�_a( �V����S6I�I4N[`�<2ms#K�.iN�~�FI�Q�rD���p�>����oU���0��t�?nTR�I�7e��Zm��Ϳ����c��v�Dq��-R���yg�e����nw8�g{�GY��

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